1#include <stdarg.h> 2 3typedef struct{double x,y;}point; 4point pts[]={{1.0,2.0},{3.0,4.0},{5.0,6.0},{7.0,8.0}}; 5static int va1(int nargs,...) 6{ 7 va_list args; 8 int i; 9 point pi; 10 va_start(args,nargs); 11 for(i=0;i<nargs;i++){ 12 pi=va_arg(args,point); 13 if(pts[i].x!=pi.x||pts[i].y!=pi.y)abort(); 14 } 15 va_end(args); 16} 17 18typedef struct{int x,y;}ipoint; 19ipoint ipts[]={{1,2},{3,4},{5,6},{7,8}}; 20static int va2(int nargs,...) 21{ 22 va_list args; 23 int i; 24 ipoint pi; 25 va_start(args,nargs); 26 for(i=0;i<nargs;i++){ 27 pi=va_arg(args,ipoint); 28 if(ipts[i].x!=pi.x||ipts[i].y!=pi.y)abort(); 29 } 30 va_end(args); 31} 32 33main() 34{ 35va1(4,pts[0],pts[1],pts[2],pts[3]); 36va2(4,ipts[0],ipts[1],ipts[2],ipts[3]); 37exit(0); 38} 39